Device and method for improving battery pole piece slit curling

A battery pole piece and incision technology, which is applied to the device for coating liquid on the surface, electrode manufacturing, spraying device, etc.

Pending Publication Date: 2019-10-08
HUIZHOU LIWINON NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the single fabric area of ​​the pole piece is cut, due to the difference in surface density between the two sides, no treatment is done in the prior art, resulting in the incision being naturally curled from the material area to the non-material area, and the notch corner of the pole piece during the winding process Sustained stress, while scratching the pole piece during rolling, resulting in corner damage and broken belt

Method used

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  • Device and method for improving battery pole piece slit curling
  • Device and method for improving battery pole piece slit curling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-2 As shown, a device for improving the crimping of battery pole piece incisions includes a coating module 1 and a drying module 2. The coating module 1 is used to identify single-sided pole pieces with special-shaped cuts, and to treat single-sided poles with special-shaped cuts. The sheet is sprayed, and the drying module 2 is used to identify the single-sided pole piece with special-shaped cut from the coating module 1, and to bake the single-sided pole piece with special-shaped cut. In actual work, the coating module 1 and the drying module 2 are arranged adjacently, the battery pole piece 3 flows through the coating module 1 and the drying module 2 in turn, and the coating module 1 sprays fog on the single-sided pole piece with special-shaped incision The solvents used include polar solvents (such as water, alcohols, etc.), non-polar solvents (such as acetone, NMP, etc.), mixed solvents (multiple polar or non-polar solvents are mixed in a certain pr...

Embodiment 2

[0046] Such as Figure 1-2 As shown, a method for improving the crimping of the battery pole piece in embodiment 1 or 2 or 3 includes the following steps:

[0047] S1. Connect the battery pole piece 3 to the coating module 1;

[0048] S2. The first sensor 11 recognizes a single-sided pole piece with a special-shaped cut in the battery pole piece 3, and transmits the signal to the spraying system 12;

[0049] S3. The spraying system 12 coats single-sided pole pieces with special-shaped cuts;

[0050] S4. Immediately after the battery pole piece 3 is connected to the drying module 2;

[0051] S5. The second sensor 21 recognizes a single-sided pole piece with a special-shaped cut in the battery pole piece 3, and transmits the signal to the drying system 22;

[0052] S6. The drying system 22 blows hot air to dry the single-sided pole pieces with special-shaped incisions;

[0053] S7. The third sensor 222 monitors the surface temperature of the single-sided pole piece with the special-shaped ...

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Abstract

The invention belongs to the technical field of a battery and particularly relates to a device for improving battery pole piece slit curling. The device includes a coating module (1) and a drying module (2), wherein the coating module (1) is used for identifying a single-sided pole piece having a profiled slit and coating the single-sided pole piece having the profiled slit, and the drying module(2) is used for identifying the single-sided pole piece having the profiled slit from the coating module (1) and drying the single-sided pole piece having the profiled slit. The device is advantaged in that the structure is simple, a problem of pole piece slit curling is effectively solved, and the device is intelligent and efficient and is convenient to use. The invention further provides a method for improving battery pole piece slit curling, and work stability and efficiency are improved.

Description

Technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a device and a method for improving the curling of the incisions of battery pole pieces. Background technique [0002] The positive and negative plates of the lithium battery will have a double-fabric area, a single-fabric area and an empty foil area during coating. When making special-shaped batteries, the pole pieces need to be cut into different shapes. After the single fabric area of ​​the pole piece is cut, due to the difference in surface density on both sides, it is not processed in the prior art, which causes the cut area to naturally curl from the material area to the non-material area, and the gap angle of the pole piece is in the winding process. Continuous force is applied, and at the same time, the pole piece is scratched during the rewinding of the passing roller, resulting in the angular breakage. [0003] In summary, the related technology has defects and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/04B05D3/04B05D1/02B05B16/20B05B14/40
CPCB05B14/40B05B16/20B05D1/02B05D3/0413H01M4/0404H01M4/0419H01M4/0471Y02E60/10
Inventor 苏轼韩冰纪荣进郑明清陈杰李载波杨山
Owner HUIZHOU LIWINON NEW ENERGY TECH CO LTD
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